Unbalanced-Ion-Pair-Catalyzed Nucleophilic Fluorination Using Potassium Fluoride
Unbalanced-Ion-Pair-Catalyzed Nucleophilic Fluorination Using Potassium Fluoride
复制标题
使用氟化钾的不平衡离子对催化亲核氟化
DOI:
10.1021/acs.orglett.1c03887
复制
发表时间:
2021
期刊:
影响因子:
5.2
通讯作者:
Xu, Bo
中科院分区:
文献类型:
--
作者:
Li, Wangbing;Lu, Zhichao;Hammond, Gerald B.;Xu, Bo
An unbalanced ion pair promoter (e.g., tetrabutylammonium sulfate), consisting of a bulky and charge-delocalized cation and a small and charge-localized anion, greatly accelerates nucleophilic fluorinations using easy handling KF. We also successfully converted an inexpensive and commercially available ion-exchange resin to the polymer-supported ion pair promoter (A26–SO42–), which could be reused after filtration. Moreover, A26–SO42–can be used in continuous flow conditions. In our conditions, water is well-tolerated.